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首页> 外文学位 >Invasive plants and native amphibians: The implications for amphibian conservation in eastern North America.
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Invasive plants and native amphibians: The implications for amphibian conservation in eastern North America.

机译：入侵植物和本地两栖动物：对北美东部两栖动物保护的影响。

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摘要

Humans introduce non-native plants to new areas at an increasing rate with the increased movement across the globe. These invasive species can become mono-cultures and extremely different from the native floral community. Amphibians, at the same time, are facing global declines with approximately one-third of all amphibians threatened or endangered. Due to the importance of amphibians as prey items for many vertebrates including small birds, mammals, and reptiles, and also predator controls over many invertebrates, including some pest species, the decline of amphibians has large implications for many environments. This study looks at a range of interactions between two invasive plants ( Typha angustifolia and Phragmites australis) and two native anurans (Lithobates clamitans and Lithobates catesbeianus).;As ecosystem engineers, plants form the basis of many communities, and sculpt the physical environment by adding complexity to the earth's surface. They also add chemical constituents either actively or passively too ward off other competitors. This change in the environment on both the chemical and physical level leads to complex possibilities for a changed plant community to impact the rest of the ecosystem, including amphibians. I focus on the physical changes by looking at behavior of amphibians in these invasive plant mono-cultures and non-invaded controls, and their appearance in invaded and non-invaded wetlands, both constructed and naturally occurring. On the chemical side of the matter, I monitor water chemistry measures in natural and constructed wetlands that are either lacking invasive plants or have a substantial presence of these plants, and correlate those measures with tadpole growth and survival.
机译：随着全球范围内的迁徙，人类将非本地植物引入新地区的速度越来越快。这些入侵物种可以成为单一文化，与本地花卉界极为不同。同时，两栖动物正面临全球范围的衰退，所有两栖动物中约有三分之一受到威胁或濒危。由于两栖动物作为许多脊椎动物（包括小鸟，哺乳动物和爬行动物）的猎物的重要性，并且由于天敌控制着许多无脊椎动物（包括某些害虫），因此两栖动物的减少对许多环境具有重大影响。这项研究着眼于两种入侵植物（香蒲（Typha angustifolia）和芦苇（Phragmites australis））和两种原生无脊椎动物（Lithobates clamitans和Lithobates catesbeianus）之间的相互作用。增加了地球表面的复杂性。他们还会主动或被动地添加化学成分，以免与其他竞争对手竞争。环境在化学和物理水平上的变化导致变化的植物群落影响包括两栖动物在内的生态系统其余部分的复杂可能性。通过研究两栖动物在这些侵入性植物单一培养物和非侵入性对照中的行为，以及它们在已构造和自然发生的已入侵和未入侵湿地中的出现，我着眼于物理变化。在化学方面，我监视缺乏入侵植物或大量存在这些植物的自然湿地和人工湿地中的水化学措施，并将这些措施与t的生长和存活联系起来。

著录项

  • 作者

    Regula Meyer, Lisa.;

  • 作者单位

    Kent State University.;

  • 授予单位 Kent State University.;
  • 学科 Biology Ecology.;Biology Conservation.;Biology Zoology.
  • 学位 Ph.D.
  • 年度 2013
  • 页码 246 p.
  • 总页数 246
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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